3273. Dinitrobenzene

C6H4N2O4; mol wt 168.11.
C 42.87%, H 2.40%, N 16.66%, O 38.07%.

Description and references

Commercial product usually consists of a mixture of the m, o and p isomers. Toxicity study: T. E. Cody et al., J. Toxicol. Environ. Health 7, 829 (1981). Review of toxicology and human exposure: Toxicological Profile for 1,3-Dinitrobenzene and 1,3,5-Trinitrobenzene (PB95-264289, 1995) 178 pp.

Chemical structure

Derivative

m-Dinitrobenzene.

Nomenclature

CAS number: 99-65-0
1,3- Dinitrobenzene.

Properties

Yellowish crystals. mp 89-90°. bp 300-303°. Volatile with steam. One gram dissolves in 2000 ml cold water, 320 ml boiling water, 37 ml alc, 20 ml boiling alcohol; freely sol in benzene, chloroform, ethyl acetate. LD50 in male, female rats (mg/kg): 91, 81 orally (Cody).

Derivative

o-Dinitrobenzene.

Nomenclature

CAS number: 528-29-0
1,2- Dinitrobenzene.

Properties

White crystals. d 1.57. mp 118°. bp 319°. Volatile with steam. One gram dissolves in 6600 ml cold water, 2700 ml boiling water, about 60 ml alc, 3 ml boiling alc, 20 ml benzene; freely sol in chloroform, ethyl acetate.

Derivative

p-Dinitrobenzene.

Nomenclature

CAS number: 100-25-4
1,4- Dinitrobenzene.

Properties

White crystals; sublimable. d 1.63. mp 173-174°. bp 299°. Volatile with steam. One gram dissolves in 12,500 ml cold water, 555 ml boiling water, 300 ml alcohol; sparingly soluble in benzene, chloroform, ethyl acetate.

Caution

Potential symptoms of overexposure include methemoglobinemia, headache, nausea, dizziness, general malaise (See Toxicological Profile); anoxia, cyanosis; visual disturbances, central scotomas; bad taste, burning mouth, dry throat, thirst; yellowing hair, eyes, skin; anemia; liver damage. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p. 116-119.

Use

Manuf of dyes, dye intermediates, explosives, plastics.